CLW2-20 20A Modular Cam Switches

CLW2-20 Modular Cam Switch Mechanical Versions

Description

CLW2-20 modular cam switches provide a 20A conventional thermal-current rating and a choice of detent, spring-return, illuminated and key-operated mechanisms. Their rotary contact programs cover circuit changeover, instrument selection, distribution controls and motor switching. Choose the contact schedule, indexing angle, handle, mounting form and panel wording as a complete configuration.

Standard detent arrangements support up to twelve sections; eight or fewer are recommended. Spring-return arrangements support up to ten. The D illuminated detent drawing specifies eleven sections maximum. Available indexing steps are 30°, 45°, 60° and 90°; contact logic and the number of sections can restrict the operating range.

Ordering Fields and Mechanical Functions

Field Code Selection meaning
Design family CLW2 Modular cam switch
Thermal current 20 Ith20A
Mechanical function Omitted Conventional version
C Single-hole mounting
CP Single-hole mounting with label, default label arrangement
D Illuminated version
M1 Large mounting plate; 48×48mm mounting-hole spacing, applicable to 20A and 25A versions
P Label version, default label arrangement
S Three-hole mounting
U Single-hole mounting without front plate
UY1 Single-hole mounting without front plate, key-operated handle
G1 G1 handle arrangement
G2 G2 handle arrangement
Y1 Key-operated handle
Y1P Key-operated handle with label
Position program Example: 6KC Step angle and start/end positions; this example gives −60°, 0°, 60°
Contact program Example: 202 Contact states at each position; specify a contact diagram for special programs
Sections 1–12; example: 3 Prefer eight or fewer; observe the selected mechanism's limit
Handle style A, A1, AD, B, C, C1, G1, G2 Match the illustrated handle and mounting version; the ordering example uses Ar
Handle color K / C / R Black / blue / red
Panel print Example: B14; special print: P Omitting the print code uses the standard wording for the selected contact program
CLW2-20 eight-field ordering layout
Ordering layout for function, position, contact program, sections, handle and panel printing.
CLW2-20 A A1 AD B C C1 G1 G2 handle outlines
Eight handle shapes; available colors are black, blue and red.

Detent and Spring-Return Position Programs

The first position-code character selects 3=30°, 4=45°, 6=60° or 9=90°. The following two letters identify the starting and ending positions on the appropriate circle, clockwise. A is the 0° reference; O is a letter, not a numeric zero. For continuous 360° rotation, the start and end letters are the same.

Example Indexing step Position sequence
3KC 30° K, O, A, B, C
4OB 45° O, A, B
6KE 60° K, A, C, E
9GC 90° G, A, C
3JJ 30° Twelve positions over 360°, starting at −90°, without an end stop
CLW2-20 lettered indexing circles
Lettered circles for selecting the start and end of the rotary travel.

Arrows below show spring-return directions; commas separate positions without a return arrow between them. Y means available; Y* means available with three sections or fewer.

Return code Angles and return directions Availability
A1 0° ← 30° Y*
A2 0° ← 45° Y
A3 −45° ← 45° Y
A4 −45° ← 0° Y
A5 0° ← 90° Y
B1 −30° → 0° ← 30° Y*
B2 −45° → 0° ← 45° Y
B3 −60° → −30° → 0° ← 30° ← 60° Y*
B4 −90°, −45°, 0°, 45° ← 90° Y
B5 −90°, −45°, 0° ← 45° Y
B6 −90° → −60° → −30° → 0° ← 30° ← 60° ← 90° Y*
B7 −90° → −45°, 0°, 45°, 90°, 135° Y
B8 −90° → −45°, 0°, 45°, 90° Y
B9 −45° → 0°, 45°, 90°, 135° Y
B10 −45° → 0°, 45°, 90°, 135°, 180° Y
B11 −45° → 0° ← 45° ← 90° Y
BA −90° → −45° → 0° ← 45° ← 90° Y
BA1 −45° → 0° → 45° ← 90° ← 135° Y
BC −45° → 0° ← 45° Y
D4 0° ← 45° ← 90° Y
Z1 −135° → −90°, 0° ← 45° Y
Z2 −45° → 0°, 90° ← 135° Y
ZA −90° → −45°, 0°, 45° ← 90° Y
ZB −90° → −45°, 0°, 45° Y
ZC −45°, 0°, 45° ← 90° Y
ZD −90°, 0° ← 45° Y
ZE 0°, 45° ← 90° Y
ZF −45°, 0° ← 45° Y
ZG −45° → 0°, 45° Y
ZK −45° → 0°, 45°, 90° Y
ZK1 −45° → 0°, 45°, 90°, 135° Y
W −120° → −90°, 0° ← 30° Y*
WA −90°, 0° ← 30° Y*
WB −30° → 0°, 90° Y*
WC 0°, 90° ← 120° Y*
WR −120° → −90°, 0°, 90° ← 120° Y*
WS −90°, 0°, 90° ← 120° Y*
WT −120° → −90°, 0°, 90° Y*
WU −90°, −30° → 0° ← 30° Y*
WV −90°, 0° ← 30°, 90° Y*

Electrical Ratings and Operating Conditions

Group Parameter Value
Electrical and mechanical Referenced standard GB/T14048.5
Conventional thermal current 20A
Rated insulation voltage 690VAC
Impulse withstand voltage 4kV
Frequency 50Hz
Mechanical life 500000 operations
Electrical life AC300000; DC200000 operations
Operating frequency 300 operations/hour
Shock resistance 50g, 11ms, half-sine waveform
Vibration resistance 10–500Hz, 5g
Operating conditions Ambient temperature −25°C to +55°C
Humidity ≤90%RH
Pollution degree 3
Installation category III
Storage/transport temperature −40°C to +80°C
Protection IP65 at the working face

Application voltage limits are 380VAC and 220VDC. The 20A thermal-current rating is separate from the operating currents for each utilization category.

Utilization category 24V 48V 110V 220V 380V
AC-15 — — 8A 4A 3A
DC-13 4A 2.4A 1.1A 0.55A —

A dash denotes an unspecified rating.

Mounting Forms and Dimensions

Dimensions below are in mm; n is the number of contact sections. Detent and spring-return rear depths are separate. Prefer eight or fewer sections, within the selected mechanism's maximum. All illustrated indexing steps are 30°, 45°, 60° and 90°.

Version Handle / front size Front projection Rear depth, detent / return Panel thickness Mounting
CLW2-20 A/A1/B/C/C1; 48×48 29 23.5+10n / 38.8+10n 1–3 Four Ø4.5 holes, 36±0.20 square; center Ø10
CLW2-20P A/A1/B/C/C1; 48×65 label plate
CLW2-20D A/A1/B/C/C1; 48×65 illuminated plate 23.5+10n detent; return depth not specified Four Ø4.5 holes, 36±0.20 square; center Ø10; lamp opening 40mm +0.20/0 ×15.8mm +0.15/0, offset 32.1±0.15
CLW2-20M1 AD only; 64×64 33.5 24+10n / 39.3+10n Four Ø4.5 holes, 48±0.20 square; center Ø10
CLW2-20G1 G1; 48×48 34.7 23.5+10n / 38.8+10n 36±0.20 square mounting; Ø10 center
CLW2-20G2 G2; 64×64 40.5 24+10n / 39.3+10n Four Ø4.5 holes, 48±0.20 square; Ø10 center
CLW2-20S A/A1/B/C/C1; 48×48 29 23.5+10n / 38.8+10n Ø10 center and two Ø4.5 holes, 30±0.20 spacing
CLW2-20C A/A1/B/C/C1; 48×48 27.4 46.7+10n / 62+10n 1–4 Keyed Ø22.3mm +0.40/0 cutout; overall keyed height 24.1mm +0.40/0, key width 3.2mm +0.20/0, R0.8
CLW2-20CP A/A1/B/C/C1; 48×65 label plate
CLW2-20U A/C; no plate, Ø43 base, 23 handle half-height
CLW2-20Y1 Key; 48×48 15.3
CLW2-20Y1P Key; 48×65 label plate
CLW2-20UY1 Key; no plate, Ø43 base
CLW2-20 conventional label and illuminated mounting dimensions
Conventional, label and illuminated mounting arrangements.
CLW2-20 M1 G1 G2 mounting dimensions
Large-panel and G1/G2 handle arrangements.
CLW2-20 S C CP mounting dimensions
Three-hole and single-hole plate versions.
CLW2-20 U Y1 Y1P mounting dimensions
Plate-free handle and key-operated plate versions.
CLW2-20 UY1 mounting dimensions
Plate-free key-operated arrangement.

On/Off and Changeover Contact Programs

Each section contains two contact pairs. The tables list closed contacts; unlisted pairs are open. An on/off program opens all pairs at 0 and closes both pair groups at 1. Changeover closes the first group at position 1 and the second at position 2; a center-off program adds an all-open 0 position between them. Bridged programs add links between even terminals 2–4, 6–8, 10–12 and the corresponding even terminals of later sections.

Sections On/off Two-position independent Two-position bridged Center-off independent Center-off bridged
1 02/1 11/1 11J/1 101/1 101J/1
2 04/2 22/2 22J/2 202/2 202J/2
3 06/3 33/3 33J/3 303/3 303J/3
4 08/4 44/4 44J/4 404/4 404J/4
5 0A/5 55/5 55J/5 505/5 505J/5
6 0C/6 66/6 66J/6 606/6 606J/6
7 0E/7 77/7 77J/7 707/7 707J/7
8 0G/8 88/8 88J/8 808/8 808J/8
9 0I/9 99/9 99J/9 909/9 909J/9
10 0K/10 AA/10 AAJ/10 A0A/10 A0AJ/10
Sections Position 1 pair group Position 2 pair group
1 1–2 3–4
2 1–2, 5–6 3–4, 7–8
3 1–2, 5–6, 9–10 3–4, 7–8, 11–12
4 1–2, 5–6, 9–10, 13–14 3–4, 7–8, 11–12, 15–16
5 1–2, 5–6, 9–10, 13–14, 17–18 3–4, 7–8, 11–12, 15–16, 19–20
6 1–2, 5–6, 9–10, 13–14, 17–18, 21–22 3–4, 7–8, 11–12, 15–16, 19–20, 23–24
7 1–2, 5–6, 9–10, 13–14, 17–18, 21–22, 25–26 3–4, 7–8, 11–12, 15–16, 19–20, 23–24, 27–28
8 1–2, 5–6, 9–10, 13–14, 17–18, 21–22, 25–26, 29–30 3–4, 7–8, 11–12, 15–16, 19–20, 23–24, 27–28, 31–32
9 1–2, 5–6, 9–10, 13–14, 17–18, 21–22, 25–26, 29–30, 33–34 3–4, 7–8, 11–12, 15–16, 19–20, 23–24, 27–28, 31–32, 35–36
10 1–2, 5–6, 9–10, 13–14, 17–18, 21–22, 25–26, 29–30, 33–34, 37–38 3–4, 7–8, 11–12, 15–16, 19–20, 23–24, 27–28, 31–32, 35–36, 39–40
Complete example Function Angles Panel labels
CLW2-20-4AB-06/3 Three-section on/off 0°, 45° 0, 1
CLW2-20-9OB-33/3 Three-section independent changeover −45°, 45° 1, 2
CLW2-20-6OB-33J/3 Three-section bridged changeover −30°, 30° 1, 2
CLW2-20-4OB-303/3 Three-section independent center-off −45°, 0°, 45° 1, 0, 2
CLW2-20-4OB-404J/4 Four-section bridged center-off −45°, 0°, 45° 1, 0, 2
CLW2-20 on off and independent changeover terminal schedules
On/off and independent changeover terminal connections.
CLW2-20 bridged and center-off terminal schedules
Bridged and center-off programs, with their terminal links.

Three-, Four- and Five-Position Programs

These programs include the common-terminal bridges shown in the drawings. Each row states the closed contacts at every operating position; all other fitted pairs are open.

Three-position program Position 1 Position 2 Position 3
111J/1 1–2 3–4 None
212J/2 1–2, 7–8 3–4 5–6
313J/3 1–2, 7–8 3–4, 9–10 5–6, 11–12
414J/4 1–2, 7–8, 13–14 3–4, 9–10, 15–16 5–6, 11–12
515J/5 1–2, 7–8, 13–14, 19–20 3–4, 9–10, 15–16 5–6, 11–12, 17–18
616J/6 1–2, 7–8, 13–14, 19–20 3–4, 9–10, 15–16, 21–22 5–6, 11–12, 17–18, 23–24
717J/7 1–2, 7–8, 13–14, 19–20, 25–26 3–4, 9–10, 15–16, 21–22, 27–28 5–6, 11–12, 17–18, 23–24
818J/8 1–2, 7–8, 13–14, 19–20, 25–26, 31–32 3–4, 9–10, 15–16, 21–22, 27–28 5–6, 11–12, 17–18, 23–24, 29–30
919J/9 1–2, 7–8, 13–14, 19–20, 25–26, 31–32 3–4, 9–10, 15–16, 21–22, 27–28, 33–34 5–6, 11–12, 17–18, 23–24, 29–30, 35–36
Four-position program Sections Position 1 Position 2 Position 3 Position 4
1111J/2 2 1–2 3–4 5–6 7–8
2222J/4 4 1–2, 9–10 3–4, 11–12 5–6, 13–14 7–8, 15–16
3333J/6 6 1–2, 9–10, 17–18 3–4, 11–12, 19–20 5–6, 13–14, 21–22 7–8, 15–16, 23–24
4444J/8 8 1–2, 9–10, 17–18, 25–26 3–4, 11–12, 19–20, 27–28 5–6, 13–14, 21–22, 29–30 7–8, 15–16, 23–24, 31–32
5555J/10 10 1–2, 9–10, 17–18, 25–26, 33–34 3–4, 11–12, 19–20, 27–28, 35–36 5–6, 13–14, 21–22, 29–30, 37–38 7–8, 15–16, 23–24, 31–32, 39–40
6666J/12 12 1–2, 9–10, 17–18, 25–26, 33–34, 41–42 3–4, 11–12, 19–20, 27–28, 35–36, 43–44 5–6, 13–14, 21–22, 29–30, 37–38, 45–46 7–8, 15–16, 23–24, 31–32, 39–40, 47–48
Five-position program Sections Applicable terminal pairs
1x5J/3 3 1–2 through 11–12
2x5J/5 5 1–2 through 19–20
3x5J/8 8 1–2 through 31–32
4x5J/10 10 1–2 through 39–40

For each five-position program, use only the pairs within its terminal range from the following complete schedule.

Operating position Closed terminal pairs
1 1–2, 17–18, 21–22, 37–38
2 5–6, 11–12, 25–26, 31–32
3 7–8, 13–14, 27–28, 33–34
4 9–10, 15–16, 29–30, 35–36
5 3–4, 19–20, 23–24, 39–40
CLW2-20 four and five position contact programs
Four- and five-position contact arrangements with terminal bridges.

Standard and Special Contact Schedules

A standard contact code identifies a defined schedule. A custom × suffix requires a separate contact diagram; the suffix alone does not define its switching states.

Program Position 1 closed pairs Position 2 closed pairs Position 3 closed pairs
424/3 1–2, 3–4, 5–6, 7–8 9–10, 11–12 1–2, 3–4, 5–6, 7–8
424×/3, illustrated custom schedule 1–2, 7–8, 11–12 5–6, 11–12 1–2, 3–4, 5–6, 7–8, 9–10

Voltmeter Selector Programs

The following schedules list closed terminal pairs at each panel position. Unlisted contacts are open. Retain the internal and external links shown in the corresponding wiring drawing.

Model Measurement arrangement Position, angle → closed pairs
CLW2-20-YH1/3 Three phase-to-neutral voltages; N connection and off position 0, 0° → None
A, 90° → 1–2, 9–10
B, 180° → 5–6, 9–10
C, 270° → 3–4, 9–10
CLW2-20-YH2/3 Three line voltages; off position 0, 0° → None
AB, 90° → 1–2, 7–8
BC, 180° → 1–2, 11–12
CA, 270° → 5–6, 11–12
CLW2-20-YH3/3 Three line voltages; no N; off position 0, 0° → None
AB, 90° → 1–2, 7–8
BC, 180° → 5–6, 11–12
CA, 270° → 3–4, 9–10
CLW2-20-YH4/2 Three line-voltage selections; no off position; A/B/C panel marks A, −90° → 1–2, 7–8
B, 0° → 1–2, 3–4
C, 90° → 3–4, 5–6
CLW2-20-YH12/2 Three line voltages; no N; off position 0, 0° → None
AB, 90° → 3–4, 5–6
BC, 180° → 5–6, 7–8
CA, 270° → 1–2, 7–8
CLW2-20-YH13/2 Three phase-to-neutral voltages; N connection; no off position; panel references A72/B100 A, 90° → 1–2, 7–8
B, 180° → 3–4, 7–8
C, 270° → 5–6, 7–8
CLW2-20-YH22/3 Three line voltages; no N; off position; panel references A75/B103 0, 0° → None
AB, 90° → 1–2, 7–8
BC, 180° → 5–6, 11–12
CA, 270° → 3–4, 9–10
CLW2-20-YH5/4 Three line and three phase-to-neutral voltages; N connection and off position CA, −135° → 5–6, 11–12
BC, −90° → 1–2, 15–16
AB, −45° → 3–4, 11–12
0, 0° → None
AN, 45° → 7–8, 9–10
BN, 90° → 3–4, 13–14
CN, 135° → 1–2, 9–10
CLW2-20-YH6/4 Three line voltages from each of two supplies; off position Supply 1 CA, −135° → 3–4, 11–12
Supply 1 BC, −90° → 7–8, 15–16
Supply 1 AB, −45° → 3–4, 15–16
0, 0° → None
Supply 2 AB, 45° → 1–2, 9–10
Supply 2 BC, 90° → 5–6, 13–14
Supply 2 CA, 135° → 1–2, 13–14
CLW2-20-YH8/4 Three line voltages and one phase-to-neutral voltage; N connection and off position CA, −135° → 5–6, 11–12
BC, −90° → 1–2, 15–16
AB, −45° → 3–4, 11–12
0, 0° → None
AN, 45° → 7–8, 9–10
CLW2-20 YH1 YH2 YH3 YH4 voltmeter selector wiring
Four voltmeter-selector connections, including their common links.
CLW2-20 YH12 YH13 YH22 YH5 YH6 YH8 voltmeter selector wiring
Additional voltmeter programs, including two-supply line-voltage selection.

Ammeter Selector Programs

Use the current-transformer connections and shorting contacts shown for the selected program. A panel position marked 0 can retain closed shorting contacts; it is not an all-open state.

Model Arrangement Position, angle → closed pairs
CLW2-20-LH1/2 Two CTs; no N; 0/A/B/C selection 0, 0° → 1–2, 5–6
A, 90° → 3–4, 5–6
B, 180° → 3–4, 7–8
C, 270° → 1–2, 7–8
CLW2-20-LH2/4 Three CTs and N; N/A/B/C selection N, 0° → 1–2, 3–4, 5–6, 15–16
A, 90° → 1–2, 5–6, 7–8, 11–12
B, 180° → 1–2, 3–4, 7–8, 13–14
C, 270° → 3–4, 5–6, 7–8, 9–10
CLW2-20-LH3/4 Three CTs; no N; 0/A/B/C selection 0, 0° → 1–2, 5–6, 7–8
A, 90° → 1–2, 7–8, 13–14
B, 180° → 5–6, 7–8, 9–10
C, 270° → 1–2, 5–6, 15–16
CLW2-20 LH1 LH2 LH3 ammeter selector circuits
Ammeter-selector circuits and current-transformer connections.

Distribution Closing and Tripping Programs

Six stages distinguish the operating history as well as the handle angle. Keep the two 0° states and the two −90° states separate. The closing and tripping positions return in the directions shown in the drawings.

Stage Panel meaning Direction Angle
T After trip ← −90°
PC Pre-close ↑ 0°
C Close ↗ 45°, returning
CA After close ↑ 0°
PT Pre-trip ← −90°
TR Trip ↙ −135°, returning
Model Closed pairs at each stage Replacement reference
CLW2-20-ZJ/1a.4.6a.40.20/7 T: 2–4, 11–10, 15–14, 20–18
PC: 1–3, 9–10, 13–14, 17–18
C: 5–8, 9–12, 13–16, 17–19
CA: 1–3, 9–10, 13–16, 17–19
PT: 2–4, 11–10, 13–14, 17–18
TR: 6–7, 11–10, 15–14, 20–18 		CLW2-20-Z-1a.4.6a.40.20/F8
CLW2-20-Z/49.6781/8 T: 3–4, 15–16, 23–24, 31–32
PC: 1–2, 9–10, 21–22, 29–30
C: 5–6, 13–14, 25–26, 27–28
CA: 1–2, 9–10, 25–26, 27–28
PT: 3–4, 15–16, 21–22, 29–30
TR: 7–8, 15–16, 17–18, 23–24, 31–32 		CLW2-20-Z-1a.4.6a.40.20/F8
CLW2-20-Z/1a.4.20/4 T: 3–4, 13–14
PC: 1–2, 11–12
C: 5–6, 9–10
CA: 1–2, 9–10
PT: 3–4, 11–12
TR: 7–8, 13–14 		CLW2-20-Z-1a.20/F8
CLW2-20-Z/1a.4.6a.40.20/5 T: 3–4, 11–12, 13–14, 19–20
PC: 1–2, 9–10, 13–14
C: 5–6, 9–10, 15–16, 17–18
CA: 1–2, 9–10, 15–16, 17–18
PT: 3–4, 11–12, 13–14
TR: 7–8, 11–12, 13–14, 19–20 		CLW2-20-Z-1a.4.6a.40.20/F8
CLW2-20-ZJ/1a.4.6a.20/6 T: 2–4, 11–10, 16–14
PC: 1–3, 9–10, 13–14
C: 5–8, 9–12, 13–15
CA: 1–3, 9–10, 13–15
PT: 2–4, 11–10, 13–14
TR: 6–7, 11–10, 16–14 		CLW2-20-Z-1a.4.6a.20/F8
CLW2-20 six-stage distribution control contact programs
Five distribution-control programs and their contact bridges.

Capacitor-Cabinet Stage Selection

Model Cabinet function Positions and angles
CLW2-20-3OI-21-9/6 Eight-stage main cabinet Auto−30°; 0–8 from 0° to 240°, 30° steps
CLW2-20-3OG-21-7/5 Six-stage main cabinet Auto−30°; 0–6 from 0° to 180°, 30° steps
CLW2-20-3OK-21-AC/7 Ten-stage main cabinet Auto−30°; 0–10 from 0° to 300°, 30° steps
CLW2-20-3JF-0-8/4 Eight-stage auxiliary cabinet 0–8 from −90° to 150°, 30° steps
CLW2-20-3JD-0-6/3 Six-stage auxiliary cabinet 0–6 from −90° to 90°, 30° steps
CLW2-20-3JH-0-A/5 Ten-stage auxiliary cabinet 0–10 from −90° to 210°, 30° steps

O in 3OI, 3OG and 3OK is the −30° position letter. All main-cabinet contacts are open in Auto. Below, None means a fitted pair remains open; Not fitted is outside the program's contact count.

Contact pair Main 8-stage: closed stages Main 6-stage: closed stages Main 10-stage: closed stages
1–2 1–8 1–6 1–10
3–4 0 0 0
5–6 0 0 0
7–8 1–8 1–6 1–10
9–10 2–8 2–6 2–10
11–12 3–8 3–6 3–10
13–14 4–8 4–6 4–10
15–16 5–8 5–6 5–10
17–18 6–8 6 6–10
19–20 7–8 None 7–10
21–22 8 Not fitted 8–10
23–24 None Not fitted 9–10
25–26 Not fitted Not fitted 10
27–28 Not fitted Not fitted 10
Contact pair Auxiliary 8-stage: closed stages Auxiliary 6-stage: closed stages Auxiliary 10-stage: closed stages
1–2 1–8 1–6 1–10
3–4 2–8 2–6 2–10
5–6 3–8 3–6 3–10
7–8 4–8 4–6 4–10
9–10 5–8 5–6 5–10
11–12 6–8 6 6–10
13–14 7–8 Not fitted 7–10
15–16 8 Not fitted 8–10
17–18 Not fitted Not fitted 9–10
19–20 Not fitted Not fitted 10

All auxiliary-cabinet pairs are open at stage 0. The ten-stage main-cabinet schedule closes both 25–26 and 27–28 at stage 10.

CLW2-20 six eight ten stage capacitor main and auxiliary cabinet programs
Main- and auxiliary-cabinet capacitor selector connections.

Motor-Control Application Programs

Use code Application
Q Direct starting of a squirrel-cage motor
N Forward/reverse starting
S Two-speed motor starting and speed selection
XS Star/delta starting

The motor-use ordering fields specify thermal current, use code and motor power in kW, followed by the program's section and option fields. In these examples, 3 denotes 3kW and 1.2 denotes 1.2kW.

Model Application Position, angle → closed pairs
CLW2-20-Q3/2 Direct starting; switching off during operation OFF, 0° → None
ON, 45° → 1–2, 3–4, 5–6
CLW2-20-N1.2/3 Starting, reversing and reverse-current braking 1, −45° → 3–4, 5–6, 9–10, 11–12
0, 0° → None
2, 45° → 1–2, 7–8, 9–10, 11–12
CLW2-20-S3/4 Two-speed motor starting and speed selection 1, −45° → 1–2, 5–6, 7–8, 11–12, 13–14
0, 0° → None
2, 45° → 1–2, 3–4, 5–6, 9–10, 13–14, 15–16
CLW2-20 Q N S motor control plate and terminal connections
Motor-control panel layouts and terminal-connection examples.

Panel Printing Options

Select a print code for both its wording and its physical layout. The English equivalents below identify the labels; use the illustrations for label locations and return arrows. Special printing uses P. Omitting a print code retains the default printing for the selected contact program.

Print-code group Layout angle Content
A1–A22 30° Worded operating and metering plates
B1–B59 45° Worded operating, distribution and metering plates
C1–C18 60° Worded operating plates
D1–D22 90° Worded operating and metering plates
E1–E8 22.5° reference layouts Numeric and Auto/Stop/Manual plates
F1–F17 30° Numeric plates
G1–G29 45° Numeric plates
H1–H14 60° Numeric plates
I1–I11 90° Numeric plates

The E-series references describe printed layouts; they do not establish a 22.5° standard indexing mechanism for CLW2-20.

Print code English wording / symbols
A1 / B1 Raise / 0 / Lower
A2 / B2 Start / 0 / Stop
A3 / B3 Trip / Stop / Close
A4 / B4 Trip / 0 / Close
A5 / B5 Off / 0 / On
A6 / B6 Remote / Stop / Local
A7 / B7 Increase speed / 0 / Decrease speed
A8 / B8 Trip / Disconnect / Close
A9 / B9 Open / 0 / Close
A10 / B10 Close / 0 / Trip
A11 / B11 Trip / 0 / Close
A12 OFF / ON
A13 Trip / 0 / Close
A14 Auto / 0 / Manual
A15 Raise voltage / Stop / Lower voltage
A16 On / Stop / Off
A17 Close / 0 / Trip
A18 Decrease speed / Stop / Increase speed
A19 AB, BC, CA, 0, A, B, C
A20 Auto / Stop / Manual / 2–6
A21 Auto / Stop / Manual / 2–8
A22 Auto / Stop / Manual / 2–10
B12 Remote / Local / Trip / Close, arranged as illustrated
B13 Remote / After trip / After close / Trip / Close
B14 / B15 / B16 Pre-close / After close / Close / Pre-trip / After trip / Trip; three layouts
B17 Stop / Start
B18 On / Off
B19 Manual / Auto
B20 Insert / Withdraw
B21 Working / Test
B22 Disconnect / Connect
B23 Local / Remote
B24 Switch cabinet / Operator station
B25 Withdraw / Insert
B26 Manual / Auto
B27 Remote / Local
B28 Disconnect / Connect
B29 Auto / Standby
B30 Stop / Start
B31 Field / Remote
B32 Remote / Field
B33 Manual / Remote control
B34 Withdraw / Insert
B35 Interlock / Manual
B36 On / Off
B37 Test / Run
B38 Disconnect / Remote
B39 1 / 2 / 3 / OFF
B40 Trip / 0 / Close
B41 Auto / Stop / Manual
B42 Trip / 0 / Close
B43 Run / Stop / Test
B44 Increase excitation / Stop / Decrease excitation
B45 Manual / Disconnect / Auto
B46 Decrease speed / Disconnect / Increase speed
B47 Raise voltage / Stop / Lower voltage
B48 Local / Stop / Remote
B49 Manual / Stop / Auto
B50 Parallel / 0 / Separate
B51 Local / 0 / Remote
B52 Local / Disconnect / Remote
B53 Decrease / 0 / Increase
B54 Low voltage / High voltage
B55 Local / 0 / Remote control
B56 Parallel / 0 / Separate
B57 Working / Stop / Standby
B58 0 and two sets of UAB / UBC / UCA
B59 0, UAB / UBC / UCA and UA / UB / UC
C1 Manual / Auto
C2 Remote / Local
C3 Local / Remote
C4 Trip / Close
C5 Off / On
C6 Auto / Manual
C7 Manual / Auto
C8 Parallel / Release
C9 Auto / Manual
C10 Local / Remote
C11 Remote / Local
C12 Trip / Disconnect / Close
C13 Decrease speed / Disconnect / Increase speed
C14 Manual / Stop / Auto
C15 Auto / Stop / Manual
C16 Local / Release / Remote
C17 Manual / Reset / Auto
C18 Remote / Local
D1 Manual / Auto
D2 Local / Remote
D3 Auto / Manual
D4 Remote / Local
D5 Trip / Close
D6 On / Off
D7 Field / Remote
D8 Close / Trip
D9 Release / Parallel
D10 Test / Run
D11 Disabled / Enabled
D12 Trip / Close
D13 Field / Remote
D14 Withdraw / Insert
D15 Interlock / Release
D16 IA / IB / IC
D17 UAB / UBC / UCA
D18 UA / UB / UC
D19 0, UA / UB / UC
D20 0, UAB / UBC / UCA
D21 0, IA / IB / IC
D22 0, IAB / IBC / ICA
E1 0–12
E2 0–13
E3 Auto / Stop / Manual / 2–11
E4 Auto / Stop / Manual / 2–12
E5 Auto / Stop / Manual / 2–13
E6 Auto / Stop / Manual / 2–14
E7 0–15
E8 0–16
CLW2-20 A and B panel printing layouts
30° A-series and 45° B-series worded panel layouts.
CLW2-20 C D E panel printing layouts
60° C-series, 90° D-series and 22.5° E-series print references.
Numeric print code Printed numbers / return marks
F1 / G1 0 ← 1
F2 / G2 1 ← 2
F3 / G3 1 → 0 ← 2
F4 / G4 1 → 2 ← 3
F5 0, 1
F6 1, 2
F7 0, 1, 2
F8 1, 0, 2
F9 1, 2, 3
F10 2, 1, 0, 1, 2
F11 1–5
F12 0–4
F13 0–5
F14 3, 2, 1, 0, 1, 2, 3
F15 0–7
F16 0–8
F17 0–11
G5 / G6 0, 1; distinct layouts
G7 1, 0
G8 / G9 1, 2; distinct layouts
G10 0, 1, 2
G11 1, 0, 2
G12 / G13 1, 2, 3; distinct layouts
G14 1, 0, 1, 2
G15 / G16 1–4; distinct layouts
G17 0–4
G18 2, 1, 0, 1, 2
G19 / G20 1–5; distinct layouts
G21 0–5
G22 1–6
G23 2, 1, 0, 1, 2, 3
G24 0–6
G25 1–7
G26 0–7
G27 1–8
G28 0–7, circular layout
G29 1–8, circular layout
H1 0, 1
H2 / H3 / H4 1, 2; distinct layouts
H5 0, 1
H6 1, 0, 2
H7 1, 2, 3
H8 0, 1, 2
H9 0–3
H10 1–4
H11 1–5
H12 2, 1, 0, 1, 2
H13 1–6
H14 0–5
I1 0, 1
I2 1, 2
I3 0, 1
I4 1, 2
I5 1, 2
I6 0, 1, 2
I7 1, 0, 2
I8 1, 2, 3
I9 0–3
I10 1–4
I11 0–3
CLW2-20 F G H I numeric panel layouts
Numeric plate layouts with their individual angular arrangements.

Custom Contact Specification

Specify thermal current, mechanical function, handle code, panel labels, handle directions and the open/closed state of every required contact pair at every position. The blank worksheet accommodates pairs 1–2 through 47–48; select a mechanism capable of the required section count.

Cam switch custom contact worksheet with twelve section layout
Worksheet for defining the complete switching sequence.

Small-Load Use and Contact Protection

The standard minimum applicable load is 24VDC, 10mA. Smaller signals require a suitable small-load contact configuration. Contacts already used on general loads should not subsequently be reused for smaller signals, because changes to the contact surface can reduce low-current reliability. Use suitable CR suppression and contact protection where bounce, noise or pulse currents affect the circuit.

Cam switch small load and standard load operating regions
Small-load operating-region reference, including the illustrated 5mW and 800mW boundaries.

These products are intended for industrial controls. High-reliability infrastructure, safety-critical transport or medical systems, severe outdoor or contaminated environments, fire or explosion hazards, military uses and large engineering projects require a specifically designed and expressly confirmed configuration.

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